Leviticus 21:5-7

⁵They shall not make baldness upon their head, neither shall they shave off the corners of their beard, nor make any cuttings in their flesh.

⁶They shall be holy unto their God, and not profane the name of their God; for the offerings of the LORD made by fire, the bread of their God, they do offer; therefore they shall be holy.

⁷They shall not take a woman that is a harlot, or profaned; neither shall they take a woman put away from her husband; for he is holy unto his God.